Underwater Math Quiz

What is the first step in multiplying a three-digit number by a two-digit number?

• Multiply the top number by itself.

• Add the two numbers together.

• Start with the tens place of the bottom number.

• Begin with the ones place of the bottom number.

When multiplying 3 by 4 in the banana example, what do you do with the result?

• Add the result to the next multiplication step.

• Ignore the tens digit and write the ones digit at the bottom.

• Carry over the tens digit and write the ones digit at the bottom.

• Write the entire result at the bottom.

In the banana example, what is the purpose of the placeholder zero?

• To indicate the end of the multiplication.

• To make the calculation easier.

• To show that you are working in the next place value.

• To separate the two numbers being multiplied.

How many waterfalls did Jenny swing over in total?

• 20,304

• 3,562

• 564

• 36

What is the final step in the multiplication algorithm?

• Subtract the two lines of numbers.

• Multiply the two lines of numbers.

• Add the two lines of numbers.

• Divide the two lines of numbers.